[Weather polarization] Tomorrow, it will be rainy in the Kanto region, and sunny and humid from the Tokai region to the west (commentary: weather forecaster Atsuko Miyake)

2026/09/11 14:12

It looks like the Kanto region will continue to experience rain and cool conditions into tomorrow, the 12th (Saturday).
However, the weather will return to sunny skies over the weekend in western and northern Japan,
and it looks like it will be hot and humid.



First, here is the state of the rain clouds as of noon today, Friday the 11th.
Rain clouds associated with the autumn rain front are covering the Pacific side of western and eastern Japan.

At this time, we are observing moderately heavy rain with an hourly rainfall of over 10mm
, mainly in Mie and Aichi prefectures.
Although there are rain clouds over northern Japan due to a weak front,
these are not rain clouds that bring down that heavy rain.



This is the forecasted weather map for tonight and tomorrow night.
The autumn rain front is expected to remain stationary over the Pacific coast of western and eastern Japan into tonight.

However, the activity of the front from the west will weaken tomorrow.
The front is also expected to move a little further south.

For this reason, it is likely that there will be sunny spells on Saturdays and Sundays in western and northern Japan.




Let's take a look at the rain cloud forecast for tomorrow.

There is an active rain cloud off the Tokai coast, but it is expected to move northward a little after this.
By the time the date changes late at night,
active rain clouds are expected to move into Shizuoka Prefecture.

In some cases, heavy rain with thunder is possible.



In addition, active rain clouds are expected to form in the northern part of the Kanto region and near the Izu Islands from early morning until dawn tomorrow (Saturday).

The Kanto region will experience temporary heavy rain through tomorrow.
You should also be careful of sudden strong rain accompanied by thunder.

In the areas on the Pacific side of the Kinki and Kanto regions,
the ground has become loose in some areas due to previous rains.
Please be careful of landslides even if it rains a little.

In the afternoon of tomorrow (Saturday), the rain clouds are expected to gradually move away to the east.



This is the weather for Saturday and Sunday.
Tomorrow (Saturday), there will be some sunshine mainly in western Japan, Hokuriku, and the Sea of Japan side of northern Japan.
In the areas west of the Tokai Sea, there are many places where the maximum daytime temperature exceeds 30c,
the height of summer.

The temperature and humidity are rising, making it feel quite hot and humid.
We still need to be careful about heatstroke.

The Kanto region is expected to feel chilly tomorrow at 23c, but when the 13th (Sunday) arrives, we can expect sunny skies in the afternoon.
It looks like the humid heat will return in the Kanto region from Sunday.



Weekly forecast.
The front is likely to remain near Honshu into next week, and
the weather will continue to be prone to rain.
Also, there are times when activity increases as the front moves north and south.
In the Hokuriku region, there is a risk of heavy rain starting around the 14th (Monday).
Warning-level heavy rain is also expected, so please continue to pay attention to the latest information.

[A must-see for weekend outdoor festival participants] Soga's large-scale festival, this weekend's (9/12/13) weather and points to keep in mind

2026/09/11 12:14

Japan's largest Japanese music rock festival will be held in Soga, Chiba Prefecture, this weekend. This is a historic festival that has been held for more than 25 years since 2000, when the culture of festivals was not yet widespread, and many big-name artists that everyone knows will perform.

For music fans heading to a destination, changes in the local weather and climate are the most important thing to worry about. Based on the latest local forecasts, we have compiled pinpoint weather information for this weekend and points to keep in mind to ensure a comfortable stay.

The local weather and temperature for this weekend (September 12th and 13th) are as follows.



On September 12th, as the autumn rain front moves northward, it is forecast to rain scattered around noon, making rain gear and a thin jacket a must. The rain is expected to gradually stop and the sky will become cloudy from around the evening.



On the other hand, there is no change in the weather on September 13th, and the weather is expected to be pleasant with occasional patches of sunshine between cloudy days.
However, there is a possibility that sudden showers or torrential downpours may occur due to the autumn rain front remaining stationary. Don't forget your raincoat.
Also, be careful of sudden increases in temperature.
An autumn rain front will pass over the sky, and maximum temperatures are expected to rise compared to September 12th. Depending on the movement of the autumn rain front, the temperature may rise even further, making it a midsummer day, so be sure to take precautions against the heat.

Next, regarding the points you should be aware of when participating in the festival, please be careful of the cold nights on the 12th and 13th. The lowest temperature was 20c on the 12th and 21c on the 13th, so you may feel chilly at night and at the end of the concert. It is a good idea to bring a thin jacket that is easy to put on and take off.

Check the latest weather information frequently and stay in perfect physical condition for the best live experience.

Weather today (Friday 11th): Cool in Kanto

2026/09/11 06:35

The autumn rain front is expected to move northward and stall near the southern coast of Honshu. Additionally, a pressure trough will approach from the continent, making it easy to rain over a wide area from southern Tohoku to Kyushu. There is a risk of heavy rain mainly in the Pacific side of eastern Japan. The temperature in the Kanto region will not reach 25c during the day, so it will feel cool.



As the autumn rain front moves northward and becomes more active, rain is expected over a wide area from southern Tohoku to Kyushu tomorrow. There is a risk of heavy rain in the Kinki, Tokai, and Kanto regions, especially in the morning. In the Kanto region, the temperature does not rise easily during the day, and many places are likely to fall below 25c. Please adjust it with your clothes.
Kyushu, Chugoku, and Shikoku will experience cloudy weather. It looks like it will rain in many places in the morning. Although there is little sunlight, the humidity is high, so daytime temperatures are expected to exceed 30 degrees Celsius and become hot and humid.
Hokkaido and the northern part of Tohoku will be covered in high pressure and will be sunny in many places. Inland areas will get cold in the morning, and the temperature difference throughout the day is likely to be large. Please take care of your health.

National weekly weather from 9/11 to 9/17

2026/09/10 20:13

The autumn rain front is expected to remain stationary near Honshu. Due to the influence of the front and humid air, the weather in eastern and western Japan is likely to continue to be dull. Please be wary of heavy rain and strong rain, especially on the Pacific side.



The front will move north tomorrow, the 11th (Friday), and rain will fall over a wide area from southern Tohoku to Kyushu. There is a risk of localized heavy rain and strong rain accompanied by thunder, mainly on the Pacific side. The Kanto-Koshin region will feel cool as the temperature will not reach 25c during the day.
After tomorrow, the 12th (Saturday), the front will remain stationary near Honshu, and there will be many cloudy and rainy days from Tohoku to Kyushu. On the other hand, Hokkaido and Okinawa are expected to have many sunny days.
From Saturday the 12th to Monday the 14th, warm and humid air will flow in from the south, so many places from the Tokai to the west will experience midsummer days with maximum temperatures exceeding 30 degrees Celsius.
Due to the influence of moist air, frontal activity is expected to increase from the middle of next week. In areas that have traditionally experienced heavy rainfall, even a small amount of rain can cause disaster. Please check the latest weather information frequently.

Weather for tomorrow, the 11th (Friday): Autumn rain front moves north, warning of heavy rain mainly on the Pacific side

2026/09/10 17:52

Tomorrow, the 11th (Friday), the autumn rain front that has been moving south of Honshu is expected to slowly move north to the southern coast of Honshu. The area of rain will spread mainly on the Pacific side, and there will be heavy rain in some places, so caution is required.



Hokkaido and northern Tohoku are expected to be covered in high pressure and receive sunlight. During the day, the temperature is around 25 degrees Celsius, which is relatively comfortable in many places, but mornings and evenings can get cold, so be aware of the temperature fluctuations throughout the day.

From southern Tohoku to western Japan, the weather is expected to be prone to rain, especially on the Pacific side. Rain clouds will develop mainly in the Kinki and Tokai regions, and there is a risk of heavy rain. The peak is expected to occur in the morning in the Kinki region, and from morning to early afternoon in the Tokai region, so people need to be careful of flooding in low-lying areas, rising river waters, and landslides. Also, please be sure to give yourself plenty of time as this will be during commuting hours.
It tends to rain throughout the day in the Kanto region, so please bring rain gear when going out.

Okinawa receives sunshine, but there is a possibility of showers, so a folding umbrella is a good idea.

[Tokyo's maximum temperature changes dramatically from 22c to 32c] Beware of sudden temperature differences in Kanto (9/10 week weather)

2026/09/10 17:03

Regarding the weather for the coming week, the Kanto region will continue to have rainy days and gloomy weather over a wide area due to the influence of the autumn rain front staying south of Honshu.



Also, be careful of sudden changes in temperature this week.
The Kanto region from the 11th (Friday) to the 12th (Saturday) will be north of the autumn rain front, so the maximum temperature in Tokyo will be between 22c and 25c, a cool autumn-like temperature. On the other hand, after the 12th, the front will move north again, causing temperatures to rise rapidly in the Kanto region, and there will be days when the maximum temperature in Tokyo will exceed 30c.
There are likely to be days when the temperature changes suddenly over the next week, so please try not to get sick.

[Heavy rain in Nagoya area again tomorrow (Friday)] Peaks from early morning to commuting hours (Commentary: Weather forecaster Atsuko Miyake)

2026/09/10 14:42

In the Tokai region, the rain is expected to become heavier again, mainly in the morning tomorrow.
The ground has become quite loose due to the heavy rains so far, so
Please be careful and be on guard against landslides.



This is what the rain clouds looked like at noon today.
The rain clouds associated with the autumn rain front have temporarily moved away from Honshu.
In the Tohoku region, there are only rain clouds over the southern part of Mie Prefecture that can bring light rain, and in many other places it is drizzle or light rain.

The autumn rain front is expected to gradually move northward into tomorrow (Friday).
As moist air flows towards this front,
frontal activity is likely to increase somewhat.

Tomorrow (Friday), it looks like there will be heavy rain in some places in the Tokai region.



Rain cloud forecast.

Even in places where it is not raining right now, rain clouds are expected to gradually move northward after this.
It is expected to rain widely from the evening onwards.

There are very few places in the Tokai region where there will be heavy rain today (Thursday), but as the date changes to tomorrow (Friday), the rain will start to get heavier.

It looks like there will be an active path of rain clouds, especially from early morning until dawn tomorrow.
There is a risk of heavy rain in the Nagoya and Gifu areas.



And, during the commuting time, the area around Nagoya is expected to get heavier and the rain will reach its peak.
After this, there is a possibility that the rain clouds will stagnate at a similar point to 7:00 and 8:00.

If rain clouds form a line in a similar location, a linear rain belt may form.

Please check the rain clouds and surrounding conditions using the latest radar before going outside.

Active clouds are expected to pass over the Tokai region from 9 a.m. to noon.
Around noon, the rain will become heavier around Shizuoka Prefecture,
there is a risk of heavy rain in some cases.

At 3:00 p.m., active rain clouds will move to the eastern part of Shizuoka Prefecture, and the rain will stop in many places after the evening.

However, it has been raining quite heavily in the Tokai region so far,
causing the ground to become loose.



Even a little rain increases the risk of landslides, and the
Japan Meteorological Agency has also issued information that requires vigilance against landslides.

A [medium] warning has been announced for Shizuoka Prefecture, as there is a possibility that a landslide warning of level 3 or above will be issued.

Tonight and tomorrow, please spend your time at home in a safe place
on the second floor or above, away from the cliff.



Let's look at the weather in various places.
It will rain in many places from today evening until tomorrow.
Tomorrow (Friday), the rain will become stronger in the afternoon, and there is a risk of heavy rain.
Please be careful about how it rains.
Even when it rains, the temperature rises to around 26c.
It looks like the hot and humid weather will continue.



Weekly forecast.
The front is likely to remain stationary and the weather will continue to be cloudy and rainy.
Among these, the temperature will rise, and the 13th (Sunday) and 14th (Monday) are likely to be midsummer days with temperatures exceeding 30c.
It looks like it's going to get hot and humid, so please be careful of heat stroke.

[Heavy rain will affect tomorrow's commute to work] Tomorrow (Friday), the front will move north again, causing warning-level heavy rain (commentary: Weather forecaster Atsuko Miyake)

2026/09/10 14:19

It looks like there will be areas where warning-level heavy rain will occur again into tomorrow, the 11th (Friday).



Today, the rain clouds associated with the front have moved away over the sea to the south.
As of noon, there are many places on the Pacific side of western and eastern Japan with
light rain, drizzle, and drizzle.



Let's take a look at the forecast weather map for tonight and tomorrow night.
A front will remain stationary over the southern ocean into tonight.
The front is expected to move northward tomorrow, the 11th (Friday). Moist air is flowing towards the
front, and the
front is likely to become more active.

It is likely that there will be localized heavy rain again, mainly on the Pacific side of western and eastern Japan.



Rain cloud forecast.

After today's evening, rain clouds are expected to gradually move northward.
It is raining in many places on the Pacific side of western and eastern Japan, and the rain is likely to become heavier from night onwards.

Today, there are still few areas where heavy or heavy rain will occur, but when the date changes to tomorrow (Friday), active rain clouds are expected to cover the Shikoku region, the Kinki region,
and the Tokai region.

Furthermore, at dawn tomorrow around 6am,
a red line of rain clouds will be visible from Osaka to Nagoya.

Rain clouds that form a line and stagnant in the same area may form a
linear rain belt.



Let's look at the forecast at 7am.
A band of rain clouds is expected in similar places from Osaka to Nagoya, Gifu, and Nagano Prefecture.
Also, active rain clouds are expected in Mie and Wakayama prefectures.
There is a risk of locally heavy rain.

Tomorrow morning, heavy rain will reach its peak in some areas, mainly in the Kinki and Tokai regions, during commuter hours.

Before going out, please check the latest rain cloud conditions, and
check the surrounding conditions before heading out.

From tomorrow afternoon, active rain clouds will move to the east.
In the afternoon, active rain clouds will cover the northern Kanto region, but in the evening, the active clouds are expected to gradually move eastward.



There is a possibility of landslides in the Tokai region and Osaka prefecture, where active rain clouds continue to accumulate
, and a warning level has been announced.

The ground has become loose in many places due to heavy rain.
Especially if you live along a mountain or near a cliff,
please stay in a safe place on the second floor or higher, away from the cliff.



The weather in various places.
Even if it is not raining now on the Pacific side of western and eastern Japan, it will rain from today evening until around noon tomorrow.
In some cases, there is a risk of heavy rain accompanied by thunder.

In the area west of the Tokai region, the temperature is high and it gets quite humid.
It looks like it's going to be uncomfortably hot.
On the other hand, the temperature is low on the Pacific side from Kanto to Tohoku,
and it seems to feel quite cool.
Please be careful not to get sick due to the temperature difference.



Weekly forecast.
The front is likely to remain stationary near Honshu from now on.
Please continue to pay attention to the latest information.
From the weekend to the beginning of the week, there are some places in western and eastern Japan with midsummer days of over 30 degrees Celsius.
Please be careful of heat stroke.

Weather for today, the 10th (Thursday): Continued rain on the Pacific side of eastern and western Japan due to the influence of the autumn rain front; warning of landslides

2026/09/10 07:44

Today, the 10th (Thursday), the weather will be prone to rain on the Pacific side of eastern and western Japan due to the influence of the autumn rain front that will be stationary over the sea south of Honshu.
There are areas where the ground has become loose due to heavy rain, so please continue to be cautious of landslides.



The autumn rain front is extending over the southern sea of Honshu. There is a low pressure system near the Izu Islands on the front, and it is moving east-northeast. On the other hand, there is a center of high pressure in mainland China, which extends out into the Sea of Japan.

Currently, it is raining in some parts of Kanto, Tokai, and Kyushu.
As of 7:30 a.m., a level 4 landslide warning has been issued for the southern part of the Izu Islands. Please be extremely cautious of landslides until noon today, the 10th (Thursday).



Hokkaido will be covered in high pressure and will be sunny.

Tohoku to Kyushu, clouds will spread due to the influence of the autumn rain front mainly on the Pacific side, and there will be periods of rain.
In particular, rain will spread throughout the afternoon, especially from Kanto-Koshin to Tokai, Kinki, Shikoku, and southern Kyushu. Please bring rain gear with you.
In the Kanto and Tokai regions, there are areas where the ground has become loose due to previous heavy rains, and even a small amount of rain can increase the risk of landslides. Please stay away from dangerous slopes and cliffs.
Please continue to be cautious of landslides. Also, be careful of lightning, gusts of wind, and hail.

Although there are many clouds on the Sea of Japan side of Honshu, there are some places where the sun can reach.

Okinawa is mostly sunny, but please be careful of rain showers.

The predicted maximum temperature will be higher than yesterday in many areas with sunny days, such as Hokkaido and the Sea of Japan side of Honshu.
On the Pacific side of northern and eastern Japan, cold winds will blow from the northeast, and there will be places where the temperature will drop significantly compared to yesterday. Temperatures in Tokyo are expected to be 23 degrees Celsius, 9 degrees Celsius lower than in Japan, and similar to early October. It would be a good idea to have something long-sleeved to wear. Please dress appropriately to avoid getting sick due to the temperature difference.

Temperatures will drop significantly in the Kanto region tomorrow, the 10th (Thursday). From now on, there will be days when it returns to midsummer, so be careful of your health.

2026/09/09 23:02

The Kanto region will be on the north side of the autumn rain front tomorrow (Thursday), so the temperature will be significantly lower than today, and it will be as cool as autumn.

The highest temperature in Tokyo is expected to be 23c, which is 8c lower than today, and is expected to be similar to early October. The temperature is expected to be 22c tomorrow, the 11th (Friday).

Today, the 9th (Wednesday), the highest temperature in Tokyo was 31.3c, making it feel hot and humid. Tomorrow, the 10th (Thursday), the temperature will drop significantly and the wind will blow from the north, so it will probably feel a little chilly.
Please adjust your clothing wisely, such as wearing a layer of jacket, and take care not to get sick.

Other areas in the Kanto region are also expected to be cooler tomorrow, the 10th (Thursday) and the 11th (Friday).
However, it is expected that there will be midsummer days with temperatures above 30c from the weekend until the beginning of the week. As the autumn rain front moves northward, the hot and humid days are likely to return, so we will need to take precautions against heat stroke.



There will be a big difference in temperature over the next week, so please adjust your clothes appropriately. As people experience heat and cold differently, this is just a guideline, but if the temperature drops below 25c, you will need long sleeves. It's a good idea to have something to put on, such as a cardigan, so you can adjust it.
Please refer to the relationship between temperature and clothing.